Comparison

LUX Control vs Voltage Drop Calc NEC

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

LUX Control

Control GM Lighting's smart products to customize your home or workspace. Create preset scenes, set schedules, and adjust brightness and color for the perfect ambiance. Compatible with voice assistants.

Highlights
  • Control GM Lighting Smart Products
  • Create preset scenes
  • Set schedules
  • Adjust brightness and color
  • Voice assistant compatibility (Alexa, Google Home)
  • Control RGBW and V120 tape lights
Read full description

LUX Control™ App allows you to control all of your GM Lighting's Smart Products and Controls to fully experience the quality and beauty that GM Lighting offering brings to your home or workspace. With the LUX Control™ App, you can create preset scenes, set schedules for your GM Smart Products, switch lights ON/OFF and control the brightness and color of your lights to create the ideal mood or ambiance that you desire and to compliment your circadian rhythms all from the convenience of your phone or tablet. LUX Control™ App is compatible with Amazon Alexa and Google Home voice assistants. The app allows you to control GM Lighting’s RGBW tape lights, line voltage V120 tape as well as our low voltage LED Tape and a variety of other GM Lighting’s Smart Products.

About

Voltage Drop Calc NEC

Features
Read full description

NEC voltage drop calculator for electricians, apprentices, and electrical engineers. Calculate voltage drop instantly using official NEC 2023 Chapter 9 data (Tables 8 and 9). Supports single-phase and three-phase circuits with copper or aluminum conductors. No internet required - works 100% offline on the job site. FEATURES: - Single-phase and three-phase calculations - 5 voltage presets: 120V, 208V, 240V, 277V, 480V - Copper and aluminum conductors: 14 AWG through 1000 kcmil - 3 conduit types: PVC, Aluminum, Steel — separate AC resistance and reactance per conduit - NEC Chapter 9 Table 9 effective impedance (Z) at power factor - Custom power factor support (default 0.85) - Voltage drop in volts and percentage - PASS/FAIL indicator based on NEC 3% recommendation - Recommends minimum wire size to meet 3% threshold - Shows voltage at load end NEC REFERENCES: - NEC 210.19(A) Info Note 4 - Branch circuit: max 3% - NEC 215.2(A) Info Note 2 - Feeder: max 3% - Combined feeder + branch: max 5% - Chapter 9 Table 8 - DC resistance at 75°C - Chapter 9 Table 9 - AC resistance, reactance, effective Z PRO FEATURES (one-time purchase): - No ads - Save calculation history - Export calculations as PDF reports - Dark theme support BUILT FOR THE JOB SITE: This app is designed by electricians, for electricians. Enter your circuit parameters, see voltage drop instantly, and get a recommended wire size - no complicated menus or unnecessary features. ACCURATE NEC DATA: All resistance and reactance values are sourced from NEC 2023 Edition, Chapter 9. Effective impedance is calculated using Z = R·cos(θ) + XL·sin(θ) per the NEC method. Always verify calculations against the official NEC code book before installation. PERFECT FOR: - Licensed electricians - Electrical apprentices - Electrical engineers and designers - Electrical contractors - DIY electrical projects - NEC code exam preparation OFFLINE & PRIVACY: - Works 100% offline - no internet needed - No account required - No data collection - Your calculations stay on your device Simplify your voltage drop calculations on the job site.

Screenshots

LUX Control4 screens
Voltage Drop Calc NEC4 screens

Verdict

The call

The clearest difference is price: LUX Control at Free against Voltage Drop Calc NEC's $0.99. LUX Control also leads on in-app purchases (none vs 1). Voltage Drop Calc NEC's advantage is update cadence (every 3 days vs every 6 months). On ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

LUX Control is free to download; Voltage Drop Calc NEC costs $0.99 up front. Voltage Drop Calc NEC sells 1 one-off in-app purchase. LUX Control asks for nothing beyond the download.

UpkeepUpdate frequency

LUX Control ships an update every 6 months, Voltage Drop Calc NEC every 3 days. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
LUX Control versus Voltage Drop Calc NEC: the parameters behind the verdict, then further details
ParameterLUX ControlVoltage Drop Calc NEC
PriceFree — better$0.99
Rating4.9 (73 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings73 — better—
Update frequencyEvery 6 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.013.0 — better
Further details — not scored
Size211 MB34 MB
Age rating17+17+
DeveloperGMLightingRizvan Adzhoian

In-app purchases

None

LUX Control

No in-app purchases

1 purchases

Voltage Drop Calc NEC

One-time1
  • Pro Unlock$2.99

Questions

Is LUX Control free?
LUX Control is free to download, with no in-app purchases.
Is Voltage Drop Calc NEC free?
Voltage Drop Calc NEC costs $0.99, and also offers in-app purchases.
Do LUX Control or Voltage Drop Calc NEC have ads?
Neither LUX Control nor Voltage Drop Calc NEC shows ads.
Which is updated more often, LUX Control or Voltage Drop Calc NEC?
LUX Control ships an update every 6 months, and Voltage Drop Calc NEC every 3 days. Most recently, LUX Control was updated on October 20, 2026 and Voltage Drop Calc NEC on October 10, 2026.

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